The HA2BC is a multipurpose processor specifically for P8000 Directional Vehicle sensors or Legacy P5050 Standard vehicle sensors. When used with the P8000 Directional Probe, there will be a separate relay output for inbound and outbound vehicles. When using Legacy standard probes, the probes can act independenlty for non-directional responses or in conjunction for directional applications. The processor can accept one P8000 Probe or up to two legacy P5050 standard probes. This processor is capable of operating up to 4 Pulsor motion sensors per zone, however, the standard HA2 processor is preferred for Pulsor applications.